the filter clogged on my truck.took it 2 the shop they said they dont have 2 fix it cause i have mbrp exhaust on my trcuk.is this true?they did say they will fix it this time BUT i have 2 put the stock exhaust back on.what u guys think? thanks

Do you have filter back, or cat back, or what?

Sorry, I just reread, you must have DPF back with a clogged filter right? Are you running any electronics?

well if its cloged im sure its dpf back / yes they can void your warranty just as easy for a filter back as they can a dpf back

well if its cloged im sure its dpf back / yes they can void your warranty just as easy for a filter back as they can a dpf back

If its a dpf back how can they say it caused the filter to clog ???

improper flow from the tip being modified i would asume. even thoe tht tip does hve holes there not nearly what the stock system has . they only need one escuse and looks like they found it.

He only said a filter was clogged - if it's the DPF why didn't the regen work? I thought under Magnuson-Moss Act the dealer had the burden of proof to show that the exhaust mod caused the filter to clog. Maybe 1 Bad 6.6 will come back with more info.

There's got to be more to this.................

He only said a filter was clogged - if it's the DPF why didn't the regen work? I thought under Magnuson-Moss Act the dealer had the burden of proof to show that the exhaust mod caused the filter to clog. Maybe 1 Bad 6.6 will come back with more info.They do have to prove the aftermarket part caused the problem, but he could just slip the stock exhaust back on if it happens again.

.I thought under Magnuson-Moss Act the dealer had the burden of proof to show that the exhaust mod caused the filter to clog. .

You guys need to stop with the Magnuson Moss act, the dealers will laugh at you if you pull that crap on them. It would cost you thousands of dollars to get a lawyer and prove your case. The bottom line is that ANYTHING you do to your truck CAN result in your warranty being voided.

The best thing you can do is feel your dealer out as far as mods go. I have some in my area that are cool with it and some that will go out of their way to burn you. You have to remember, straight time pays alot more than warranty time. Techs would rather get paid straight time............

Also, for all of you that do all your own maintenance, oil changes, fuel filters etc. Save all you receipts. You may need them if a problem should come up with your truck.

yes it is a single 4 inch filter back system.they tool me it needs the muffler on there 2 have back presure too regen properly.

You guys need to stop with the Magnuson Moss act, the dealers will laugh at you if you pull that crap on them. It would cost you thousands of dollars to get a lawyer and prove your case. The bottom line is that ANYTHING you do to your truck CAN result in your warranty being voided.

The best thing you can do is feel your dealer out as far as mods go. I have some in my area that are cool with it and some that will go out of their way to burn you. You have to remember, straight time pays alot more than warranty time. Techs would rather get paid straight time............

Also, for all of you that do all your own maintenance, oil changes, fuel filters etc. Save all you receipts. You may need them if a problem should come up with your truck.
So so true! Apsolutly any mods can void your waranty. GM is so aware of us good ole boys who love to modify, modify. Thinking they have to prove anything between you and them is bullshit. Now you want to get a law firm involved and spend hundreds or thousands of dollars, they mite listen. But they know that takes time not to mention money. It's there ball and there playing there game more and more. You got to know that GM is putting the pressure on all dealers to void repairs under warranty if they have any foot to stand on at all. Why give millions out in repairs when they can give a lot less to the legal department to represent them in a court of law. I for one am making that stand. I own a lemon that they are blaming mods for problems. I have heard all of there crap from A to Z. I will probably spend thousands to litigate this in a Court of law, but that is my commitment as of now. Truck has been in the shop over 40 days now, 30 at one time. $54,000 truck, $8,900 in mods. I am NOT anti GM by no Menes. I have a good friend that own,s a GM dealer and friends that work at or for GM. I have enjoyed very much the dependability, ride, and comfort of these trucks for years. I have a Major problem with this one. Worries me to think that if you have two dealers saying that GM should warrant a buy back on this truck and in the mean time customer service is pushing these guys to try and fix it.

AlZDURAMAXX,

Good luck, let us know how you make out.

yes it is a single 4 inch filter back system.they tool me it needs the muffler on there 2 have back presure too regen properly.I have the same setup - 2,500 miles - regen works just fine...so far.

Backpressure from the muffler? They are reaching now.

Backpressure from the muffler? They are reaching now.
im just saying what im told.what do i do?

as of today they say i need 2 give them $1100 for a dpf filter its clogged solid because it will not be covered under the warranty due to the aftermarket exhaust.they also said not sure about the senors yet but may have 2 replace them aswell.

as of today they say i need 2 give them $1100 for a dpf filter its clogged solid because it will not be covered under the warranty due to the aftermarket exhaust.they also said not sure about the senors yet but may have 2 replace them aswell.
Since I have the same setup as you I'm concerned too. How many miles do you have on the truck? Ask them how many regens the truck has done (the computer should tell them that), also ask them to show you the readout that shows how many grams of soot the filter has in it. And they want you to pay to replace the DPF even though you still don't have the muffler on or are they saying put a muffler on too? Sorry for all the questions - this just doesn't sound right - I think the dealer is stiffing you. I'd ask for proof that the lack of a muffler caused the DPF to clog up. The regen should cause the soot to burn off and everything I've read said regen is started based on sensor readouts and maybe mileage - I can't believe the muffler which is downstream of the DPF and the sensors affects regen at all. Have you talked to the guys at MBRP? Good luck. Keep us informed.

Silly question probably, but what year truck are we talking about here?

as of today they say i need 2 give them $1100 for a dpf filter its clogged solid because it will not be covered under the warranty due to the aftermarket exhaust.they also said not sure about the senors yet but may have 2 replace them aswell.Put your stock system back on and go to another dealer!

its a 07.5 2300 miles om the truck. yes i have talked 2 dave at mbrp.he is trying to help as of today.

its a 07.5 2300 miles om the truck. yes i have talked 2 dave at mbrp.he is trying to help as of today.One more question/thought - have you asked the dealer (or have they offered) to do a factory or manual regen to clear the filter?

I dunno on the pick-up trucks, but in class 8 the manufacturers have found a loophole to not paying for any dpf or particulate filter

keyword

FILTER = MAINTENENCE ITEM = NON-CLAIMABLE ITEM

just so you know some the class 8 dpf filters run in the $5000 range

One more question/thought - have you asked the dealer (or have they offered) to do a factory or manual regen to clear the filter?
they did 3 time.so they say.

im just saying what im told.what do i do?
Man it's all in who you deal with. They want to make a big deal about a cat back system, that is there prerogative. It's in there court now they can play there cards. If they want to blame this on something so GM doesn't bear the cost it is entirely up to them. You could have taken it to a different dealer and the results could have been totally different. But now that this dealer has your truck and V.I.N. on file, anywhere you take it now, all they do is run the V.I.N. and the whole story comes up on how all this is the fault of your exhaust modifications. Which, in GM's eyes is a direct modification of the emissions on the truck. Gives them a way out.

and yes the dpf is verry sensative to change and and any change can disrupt the balance exatley y mine sits in a box in my gargae. and its not that it did not regen its usally that when it finnaly got to clean exaust filter now mesege it was on the edge of being completley packed full .and more then likley y the service regen did not work . tht a bummer if you have to pay if you have to you might as well go turbo back now since they are not going to cover it any ways. it will be cheaper as well

you might as well go turbo back now since they are not going to cover it any ways. it will be cheaper as well

that's exactally what i was thinking you can spend much less than 1100 getting a programmer and an exhaust to stop those codes all while picking up better economy.

x2 on that............exactly what I was thinking. Why have good money chase bad here, make the change.

that's exactally what i was thinking you can spend much less than 1100 getting a programmer and an exhaust to stop those codes all while picking up better economy.
ok what would i do 4 codes then? they said if i dont put stock exhaust back on they will void all warrenty work 4 this truck.can they do this?

You need to find a new dealer, they might, and I stress mightbe able to void engine warranty but even that is a stretch. I worked at a dealer 11 years and only ever saw 2 complete warranty denials, and even those were extreme cases. Sounds to me like this dealer is trying to keep the warranty costs down at your expense. In theory the pressure sensor at the front of the DPF should be the key one, and if it's clogged I'd be checking that sensor. Any pressure differential after the DPF is really not relavent, as a clogged DPF would change pressure prior to the DPF. Just my 2 pennies worth of a rant..........

I just don't get it, if he put on a DPF back system, AND, the trucks own computer was doing it's thing properly by measuring the pressure differential, and taking other factors into consideration to force the system into REGEN, then the DPF wouldn't clog, right? Sounds like there's something wrong with the system, UNLESS, maybe running LSD NOT ULSD? Who knows? Something just doesn't add up, except for a dealer that won't take care of this under warranty JUST BECAUSE he see's something that isn't factory under the frame.................I feel the pain, man!

Sounds like there's something wrong with the system

Uhhh....maybe the pre DPF pressure sensor......?

Yup, that's something to consider. Wonder if the front pressure sensor got whacked while the DPF back system was put on? or, just went bad, or..............maybe a fault in the system that wouldn't call for a REGEN...............

If you're installing DPF back, you shouldn't be anywhere near that sensor.

have you spoken w/ mbrp yet? b/c imo there is no way that only your truck has had this problem.

have you spoken w/ mbrp yet? b/c imo there is no way that only your truck has had this problem.
I agree - I think the dealer doesn't want to diagnose the problem or doesn't know how to and is blaming the first thing he sees. I have the same setup with about 2,500 miles and no issues - I don't know whether to be worried or thankful.

they can t void your warranty if you go turbo back the only thing thay can void is for the system itself or if they somehow try to prove that it caused other damage by removing it . but if ur radio goes bad or something its kinda hard to prove tht having no dpf caused tht . i would also agree tht this is probblay not the only case of this hapening from people doing a dpf back system . one thing to remeber is put your truck back to stock if you want to have a chance at warranty work wether it be dpf back turbo back or whatever the mod may be .

Sound advise.

i dont understand this when dealers put some exhausts on themselves...damn dealers just trying to screw you over... if you put a pipe on the only thing is should void is the pipe. if you put a radio in it should only void the radio. etc.. whats wrong with the world these days.. now wonder its a sue happy world..

have you spoken w/ mbrp yet? b/c imo there is no way that only your truck has had this problem.
yes i have they said they have not heard anything from chevys yet but the fords they have.

i dont understand this when dealers put some exhausts on themselves...damn dealers just trying to screw you over... if you put a pipe on the only thing is should void is the pipe. if you put a radio in it should only void the radio. etc.. whats wrong with the world these days.. now wonder its a sue happy world..
whats wrong its all about MONEY these days!!!!!!!!

exactly everyone trying to get their cut... i paid 36500 for my truck if i wanna put an exhaust on. its my choice. if the turbo messes up fix the turbo for me.. if the radio quits working fix it.. if the exhaust starts messing up then its on me.. cause i changed it. if not then you fix it

I have the MBRP DPF back sysyem also, 4600 miles, so far so good.